Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 5 - Trigonometric Functions - 5.1 Angles - 5.1 Exercises - Page 505: 91

Answer

$130^{\circ}$

Work Step by Step

Subtract $360^{\circ}$ as many times as needed to obtain an angle with measure greater than $0^{\circ}$ but less than $360^{\circ}$. $850^{\circ}-(2\cdot360^{\circ})=130^{\circ}$ This is the angle of least positive measure that is coterminal with $850^{\circ}$.
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